GB8603484D0 - Radio receivers - Google Patents

Radio receivers

Info

Publication number
GB8603484D0
GB8603484D0 GB868603484A GB8603484A GB8603484D0 GB 8603484 D0 GB8603484 D0 GB 8603484D0 GB 868603484 A GB868603484 A GB 868603484A GB 8603484 A GB8603484 A GB 8603484A GB 8603484 D0 GB8603484 D0 GB 8603484D0
Authority
GB
United Kingdom
Prior art keywords
radio receivers
receivers
radio
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB868603484A
Other versions
GB2189114A (en
GB2189114B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Plessey Co Ltd
Original Assignee
Plessey Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB8603484A priority Critical patent/GB2189114B/en
Publication of GB8603484D0 publication Critical patent/GB8603484D0/en
Publication of GB2189114A publication Critical patent/GB2189114A/en
Application granted granted Critical
Publication of GB2189114B publication Critical patent/GB2189114B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/14—Demodulator circuits; Receiver circuits
    • H04L27/144—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements
    • H04L27/152—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using controlled oscillators, e.g. PLL arrangements
    • H04L27/1525—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using controlled oscillators, e.g. PLL arrangements using quadrature demodulation

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
GB8603484A 1986-02-12 1986-02-12 Radio receivers Expired - Fee Related GB2189114B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8603484A GB2189114B (en) 1986-02-12 1986-02-12 Radio receivers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8603484A GB2189114B (en) 1986-02-12 1986-02-12 Radio receivers

Publications (3)

Publication Number Publication Date
GB8603484D0 true GB8603484D0 (en) 1986-03-19
GB2189114A GB2189114A (en) 1987-10-14
GB2189114B GB2189114B (en) 1990-03-14

Family

ID=10592950

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8603484A Expired - Fee Related GB2189114B (en) 1986-02-12 1986-02-12 Radio receivers

Country Status (1)

Country Link
GB (1) GB2189114B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3068188B2 (en) * 1991-11-25 2000-07-24 ジーメンス アクチエンゲゼルシャフト エスターライヒ Demodulation method using quadrature modulation
CN1087120C (en) * 1994-11-10 2002-07-03 松下电器产业株式会社 Direct frequency conversion receiver
GB2296845A (en) * 1995-01-04 1996-07-10 Plessey Semiconductors Ltd Frequency shift keyed radio receivers
KR101401835B1 (en) 2006-03-29 2014-05-29 톰슨 라이센싱 Frequency limiting amplifier in a fsk receiver

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1517121A (en) * 1977-01-13 1978-07-12 Standard Telephones Cables Ltd Radio receiver for fsk signals
GB2032737A (en) * 1978-10-24 1980-05-08 Standard Telephones Cables Ltd Radio receiver for tone modulated signals
GB2057820B (en) * 1979-09-04 1984-07-04 Standard Telephones Cables Ltd Radio receiver for fsk signals
GB2101821B (en) * 1981-07-16 1984-11-14 Standard Telephones Cables Ltd Radio receiver for frequency shift keyed signals
GB2106359B (en) * 1981-09-24 1985-07-03 Standard Telephones Cables Ltd Direct conversion radio receiver for fm signals
GB2141007B (en) * 1983-06-02 1986-07-23 Standard Telephones Cables Ltd Demodulator logic for frequency shift keyed signals
JPS60100859A (en) * 1983-11-08 1985-06-04 Nec Corp Frequency detector

Also Published As

Publication number Publication date
GB2189114A (en) 1987-10-14
GB2189114B (en) 1990-03-14

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20040212